mirror of
https://github.com/privatevoid-net/nix-super.git
synced 2024-09-20 16:38:05 +03:00
2b0e95e7aa
this also reduces forceValue code size and removes the need for hideInDiagnostics. coopting thunk forcing like this has the additional benefit of clarifying how these errors can happen in the first place.
55 lines
1.4 KiB
C++
55 lines
1.4 KiB
C++
#pragma once
|
|
///@file
|
|
|
|
#include "eval.hh"
|
|
|
|
#include <tuple>
|
|
#include <vector>
|
|
|
|
namespace nix {
|
|
|
|
/**
|
|
* For functions where we do not expect deep recursion, we can use a sizable
|
|
* part of the stack a free allocation space.
|
|
*
|
|
* Note: this is expected to be multiplied by sizeof(Value), or about 24 bytes.
|
|
*/
|
|
constexpr size_t nonRecursiveStackReservation = 128;
|
|
|
|
/**
|
|
* Functions that maybe applied to self-similar inputs, such as concatMap on a
|
|
* tree, should reserve a smaller part of the stack for allocation.
|
|
*
|
|
* Note: this is expected to be multiplied by sizeof(Value), or about 24 bytes.
|
|
*/
|
|
constexpr size_t conservativeStackReservation = 16;
|
|
|
|
struct RegisterPrimOp
|
|
{
|
|
typedef std::vector<PrimOp> PrimOps;
|
|
static PrimOps * primOps;
|
|
|
|
/**
|
|
* You can register a constant by passing an arity of 0. fun
|
|
* will get called during EvalState initialization, so there
|
|
* may be primops not yet added and builtins is not yet sorted.
|
|
*/
|
|
RegisterPrimOp(PrimOp && primOp);
|
|
};
|
|
|
|
/* These primops are disabled without enableNativeCode, but plugins
|
|
may wish to use them in limited contexts without globally enabling
|
|
them. */
|
|
|
|
/**
|
|
* Load a ValueInitializer from a DSO and return whatever it initializes
|
|
*/
|
|
void prim_importNative(EvalState & state, const PosIdx pos, Value * * args, Value & v);
|
|
|
|
/**
|
|
* Execute a program and parse its output
|
|
*/
|
|
void prim_exec(EvalState & state, const PosIdx pos, Value * * args, Value & v);
|
|
|
|
}
|